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Top 20 Best New York Private High Schools Belonging to New York State Association of Independent Schools (NYSAIS) (2025)

For the 2025 school year, there are 90 private high schools belonging to New York State Association of Independent Schools (NYSAIS) serving 37,922 students in New York. You can also find more schools membership associations in New York.

The private high schools belonging to New York State Association of Independent Schools (NYSAIS) in New York include Emma Willard School, Friends Academy, and Ethical Culture Fieldston School (ECFS).

The average tuition cost is $45,362, which is higher than the New York private high school average tuition cost of $27,724.

26% of private high schools belonging to New York State Association of Independent Schools (NYSAIS) in New York are religiously affiliated (most commonly Catholic and Christian).

Bay Ridge Preparatory School Photo - With a fresh approach to education, Bay Ridge Prep gives students an enriching experience that lasts a lifetime. Curiosity is stimulated, confidence is built, character is strengthened and socially-responsible citizens are graduated and prepared to be leaders of a global society.

Avenues The World School Photo - Avenues Early Learning Center Classroom

Tuxedo Park School Photo - At Tuxedo Park School, every teacher knows every child. Our small size allows us to administer differentiated instruction at all levels and to challenge the most advanced students while supporting those who need additional or varied instruction.

Professional Children's School Photo - Students collaborating in the PCS library.

Buffalo Seminary Photo - Founded in 1851, and in this building since 1909, Buffalo Seminary is on the National Register of Historic Places. Our campus includes 5 faculty and student residences in adjacent restored historic homes, and Larkin Field, a 5-minute walk away on a leafy parkway.

Green Meadow Waldorf School Photo - Green Meadow`s middle school academic curriculum engages the budding capacities and immense curiosity of the young teenager. Through practical interdisciplinary experiences, age appropriate challenges, and meaningful social interactions, students thrive academically and emotionally. Every day, students take part in immersive, explorative inquiry, broadening and deepening their understanding of the world.

British International School Of Ny Photo - Water views and fresh air keep the students energized and ready to learn. Who says you need to be in a classroom to learn new skills and make new friends!

The Knox School Photo - Founded in 1904, The Knox School is Long Island`s oldest established private school. Our inclusive environment serves grades 6-12 and Post-Graduate, providing students with a broad world perspective and a wide range of skills to prepare them for the next phase of their journeys.

The Waldorf School Of Garden City Photo - Welcome to the Waldorf School of Garden City!

Vincent Smith School Photo - Upper School entrance

Friends Academy Photo - Our youngest graduates are exceptionally prepared academically while also being embraced as part of our Friends community

The Windsor School Photo - Each year, our graduation ceremony takes places at Queens Botanical Garden. We are proud of our 100% graduation rate each year dating back to 1969, our first graduating class. Our graduates gain acceptance to top colleges and universities with substantial scholarship offers.

Harmony Christian School Photo - Getting our gym ready for the 2018-2019 school year

Xavier High School Photo - A preview of Xavier's personalized college counseling program.

Rye Country Day School Photo - Rye Country Day School was founded in 1869. The School is a coed, college preparatory school serving students in Pre-Kindergarten - Grade 12.

Berkeley Carroll School Photo - Berkeley Carroll is one of NYC's top independent schools.

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